Energy-saving lighting can choose energy-saving light sources and lamps

Energy-saving lighting can choose energy-saving light sources and lamps. With the continuous deepening of my country's reform and opening up, the rapid development of the national economy and the improvement of people's standards, my country's lighting electricity consumption has accounted for %-% of the total electricity consumption. According to the 'China Green Lighting Project' proposed by China, lighting power saving has become an important aspect of energy saving. Power saving is to promote high-efficiency and energy-saving lighting fixtures, improve power utilization, and reduce power consumption under the premise of ensuring illuminance.　　.Scientific selection of electric light sources　　Scientific selection of electric light sources is the primary issue of lighting and energy saving. At present, the luminous efficiency, lifespan, and color rendering performance of domestically produced electric light sources are constantly improving, and energy-saving electric light sources continue to emerge. Electric light sources can be divided into two categories according to the light-emitting principle. One type is thermal radiation electric light source, such as incandescent lamp, tungsten halogen lamp and so on. The other type is gas discharge light source, such as mercury lamp, sodium lamp, xenon lamp, metal halide lamp and so on. The luminous efficiency of various electric light sources is quite different. The gas discharge light source is much higher than the thermal radiation electric light source. In general, gas discharge light sources can be gradually used to replace thermal radiation electric light sources, and gas discharge light sources with high light efficiency should be selected as much as possible.　　High-pressure sodium lighting is ~times that of incandescent lamps, with long life, stable characteristics, and high luminous maintenance. It is suitable for lighting in roads, squares, wharves and indoor tall factories and warehouses with low color rendering requirements.　　Metal halide lamp has the characteristics of high luminous efficiency, good color rendering and high power. It is suitable for three large-area lighting fields such as theaters and assembly workshops.　　 Fluorescent lamps are more energy-saving than incandescent lamps, and are suitable for indoor lighting in offices, dormitories, and workshops with ceiling heights less than one meter. The luminous efficiency of compact fluorescent lamps is% higher than that of ordinary fluorescent lamps, and the thin tube fluorescent lamps save energy by% compared to ordinary fluorescent lamps. Therefore, compact and thin tube fluorescent lamps are highly energy-saving introduced in the implementation plan of the 'China Green Lighting Project' during the 'Ninth Five-Year Plan' period. light source.　　In the case of frequent opening and closing, small area, and low lighting requirements, incandescent lamps can be used. The light flux of the double spiral filament type incandescent lamp is increased by% compared with the single spiral filament type incandescent lamp. It can be preferentially selected according to needs.　　 When it comes to energy-saving lighting, energy-saving lamps seem to be the only word for people. But we can see that more and more energy-saving lighting products appear in people's field of vision. At present, mercury lamps, high-power energy-saving lamps, and metal halide lamps are three types of light sources commonly used in industrial lighting. Which of the three light sources are most energy-efficient? The evaluation shows that metal halide lamps are *energy-saving. Luminous efficiency/average life comparison Mercury lamp self-ballasted mercury lamp energy-saving lamps (CFL) metal halide light efficiency (lumens/watt)-average life (hours)-from the price point of view, the price of metal halide lamps is *high, Mercury lamps are cheap. Using high-power energy-saving lamps, the initial investment is small, easy to replace, but only suitable for low-ceiling workshops. The metal halide lamp has large energy saving, high illuminance, high power saving efficiency, and has an advantage over mercury lamps in total operating costs. It is especially suitable for factories, stadiums, street lights, etc. with strong illumination and high power consumption.　　. Reasonable selection of lighting lamps　　 The main function of lamps is to rationally distribute the luminous flux of the light source, meet the light distribution requirements of the environment and work, and do not produce glare and serious light curtain reflection. When choosing lamps, in addition to considering the ambient light distribution and limiting glare requirements, the efficiency of the lamps should also be considered, and high-efficiency lamps should be selected.　　 Among all kinds of lamps, fluorescent lamps are mainly used for indoor lighting, mercury lamps and sodium lamps are used for outdoor lighting, and the two can also be installed together for mixed lighting. In this way, the light efficiency is high, the power consumption is low, the light is accurate, coordinated, and visually comfortable.　　 In addition, a reasonable light distribution should be adopted in the design of the lamp. For example, the arc of incandescent lamps can be treated reasonably, and the illuminance can be saved% under the condition of constant illumination. The lamps of fluorescent lamps are designed to stagger the heavy light part, which can improve the luminous efficiency%.